12-21910317-C-CAA

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS1

The NM_020297.4(ABCC9):​c.1165-7_1165-6dupTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0015 ( 0 hom., cov: 0)
Exomes 𝑓: 0.00075 ( 0 hom. )

Consequence

ABCC9
NM_020297.4 splice_region, intron

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 1.57

Publications

6 publications found
Variant links:
Genes affected
ABCC9 (HGNC:60): (ATP binding cassette subfamily C member 9) The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MRP subfamily which is involved in multi-drug resistance. This protein is thought to form ATP-sensitive potassium channels in cardiac, skeletal, and vascular and non-vascular smooth muscle. Protein structure suggests a role as the drug-binding channel-modulating subunit of the extra-pancreatic ATP-sensitive potassium channels. Mutations in this gene are associated with cardiomyopathy dilated type 1O. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2011]
ABCC9 Gene-Disease associations (from GenCC):
  • hypertrichotic osteochondrodysplasia Cantu type
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • dilated cardiomyopathy 1O
    Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Illumina, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • intellectual disability and myopathy syndrome
    Inheritance: AR Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • acromegaloid facial appearance syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hypertrichosis-acromegaloid facial appearance syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Brugada syndrome
    Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • atrial fibrillation, familial, 12
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6
Variant 12-21910317-C-CAA is Benign according to our data. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-21910317-C-CAA is described in CliVar as Likely_benign. Clinvar id is 3040132.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0015 (178/118584) while in subpopulation AFR AF = 0.00534 (166/31108). AF 95% confidence interval is 0.00467. There are 0 homozygotes in GnomAd4. There are 83 alleles in the male GnomAd4 subpopulation. Median coverage is 0. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCC9NM_020297.4 linkc.1165-7_1165-6dupTT splice_region_variant, intron_variant Intron 9 of 39 ENST00000261200.9 NP_064693.2 O60706-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCC9ENST00000261200.9 linkc.1165-6_1165-5insTT splice_region_variant, intron_variant Intron 9 of 39 5 NM_020297.4 ENSP00000261200.4 O60706-2

Frequencies

GnomAD3 genomes
AF:
0.00149
AC:
177
AN:
118576
Hom.:
0
Cov.:
0
show subpopulations
Gnomad AFR
AF:
0.00531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000335
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000522
Gnomad FIN
AF:
0.000152
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000716
Gnomad OTH
AF:
0.000616
GnomAD2 exomes
AF:
0.00196
AC:
279
AN:
142000
AF XY:
0.00170
show subpopulations
Gnomad AFR exome
AF:
0.00440
Gnomad AMR exome
AF:
0.00215
Gnomad ASJ exome
AF:
0.00281
Gnomad EAS exome
AF:
0.00250
Gnomad FIN exome
AF:
0.000107
Gnomad NFE exome
AF:
0.00155
Gnomad OTH exome
AF:
0.00204
GnomAD4 exome
AF:
0.000751
AC:
951
AN:
1267020
Hom.:
0
Cov.:
0
AF XY:
0.000830
AC XY:
525
AN XY:
632462
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00413
AC:
113
AN:
27364
American (AMR)
AF:
0.00155
AC:
51
AN:
32852
Ashkenazi Jewish (ASJ)
AF:
0.00159
AC:
36
AN:
22680
East Asian (EAS)
AF:
0.00101
AC:
36
AN:
35528
South Asian (SAS)
AF:
0.00221
AC:
159
AN:
71972
European-Finnish (FIN)
AF:
0.000311
AC:
12
AN:
38616
Middle Eastern (MID)
AF:
0.00143
AC:
7
AN:
4906
European-Non Finnish (NFE)
AF:
0.000504
AC:
494
AN:
980248
Other (OTH)
AF:
0.000814
AC:
43
AN:
52854
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.281
Heterozygous variant carriers
0
94
188
281
375
469
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00150
AC:
178
AN:
118584
Hom.:
0
Cov.:
0
AF XY:
0.00146
AC XY:
83
AN XY:
56940
show subpopulations
African (AFR)
AF:
0.00534
AC:
166
AN:
31108
American (AMR)
AF:
0.000335
AC:
4
AN:
11956
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2768
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3884
South Asian (SAS)
AF:
0.000526
AC:
2
AN:
3802
European-Finnish (FIN)
AF:
0.000152
AC:
1
AN:
6596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
194
European-Non Finnish (NFE)
AF:
0.0000716
AC:
4
AN:
55898
Other (OTH)
AF:
0.000613
AC:
1
AN:
1630
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

ABCC9-related disorder Benign:1
Mar 09, 2022
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
1.6
Mutation Taster
=98/2
polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs35857705; hg19: chr12-22063251; API